短語詞組短語Keep Your Back Straight 保持背部挺直not keep running back 不要回頭繼續(xù)奔跑keep p back 留下;意為Keep Your Back Relaxation 保持腰部放松Keep Doming Back 持續(xù)熱帶So Keep Checking Back 所以繼續(xù)回They Keep Coming Back 他們老起來Keep Pushing Back 堅持抵制keep sth back 保留某事物;拒絕給予或允許 返回 keep back